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Literature summary for 6.3.2.17 extracted from

  • Imeson, H.C.; Cossins, E.A.
    Folylpolyglutamate synthase from higher plants (1997), Methods Enzymol., 281, 141-145.
    View publication on PubMed

General Stability

General Stability Organism
50% glycerol stabilizes for several days at 4°C Pisum sativum

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.0035
-
5,6,7,8-tetrahydropteroyl-Glu
-
Pisum sativum
0.61
-
L-Glu
-
Pisum sativum
2.3
-
ATP
-
Pisum sativum

Localization

Localization Comment Organism GeneOntology No. Textmining
cytosol
-
Homo sapiens 5829
-
cytosol cotyledon Pisum sativum 5829
-
mitochondrion leaf Pisum sativum 5739
-

Metals/Ions

Metals/Ions Comment Organism Structure
NaHCO3 optimal activation at 10 mM Homo sapiens
NaHCO3 optimal activation at 10 mM Pisum sativum

Organism

Organism UniProt Comment Textmining
Homo sapiens
-
-
-
Pisum sativum
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Pisum sativum

Source Tissue

Source Tissue Comment Organism Textmining
cotyledon
-
Pisum sativum
-
leaf
-
Pisum sativum
-
seed
-
Pisum sativum
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Pisum sativum

Storage Stability

Storage Stability Organism
purified enzyme loses activity within 1-2 days at 4, without stabilizer Pisum sativum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + 5,10-methylene-5,6,7,8-tetrahydropteroyl-gamma-Glun + Glu n:1 Pisum sativum ADP + phosphate + 5,10-methylene-5,6,7,8-tetrahydropteroyl-gamma-Glun+1
-
?
ATP + 5,6,7,8-tetrahydropteroyl-Glu + L-glutamate
-
Pisum sativum ADP + phosphate + 5,6,7,8-tetrahydropteroyl-Glu2
-
?
ATP + 5,6,7,8-tetrahydropteroyl-Glun + Glu
-
Homo sapiens ADP + phosphate + 5,6,7,8-tetrahydropteroyl-gamma-Glun+1
-
?
ATP + 5,6,7,8-tetrahydropteroyl-Glun + Glu
-
Pisum sativum ADP + phosphate + 5,6,7,8-tetrahydropteroyl-gamma-Glun+1
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8.5
-
-
Pisum sativum

pH Range

pH Minimum pH Maximum Comment Organism
7 10 7.4: about 50% of maximal activity Pisum sativum